Is there a Greenhouse Effect on Venus?

This link recently discovered says NO. 
Where are physicists to comment?

http://theendofthemystery.blogspot.com/2010/11/venus-no-greenhouse-effect.html

First comment received pointed me to this link:

http://www.countingcats.com/?p=4745

Meanwhile (it's now 06 OCT 11) more links have turned up from helpful readers, and my thanks to them:

http://www.nature.com/nature/journal/v450/n7170/full/450617a.html

http://community.zeit.de/user/observator/beitrag/2008/02/07/venusatmosphaere-widerlegt-treibhaushypothese

http://www.whiteworld.com/technoland/stories-nonfic/2008-stories/Venus-temp.htm

http://www.gps.caltech.edu/classes/ge150/readings/Venus_Express.pdf

BUT there is a greenhouse effect on Venus!
See see Michael Hammer's post at
http://joannenova.com.au/2011/10/there-is-a-greenhouse-effect-on-venus/#more-16793